Francis j



citizen of the United States, residing at Philaing elements, separate the acids from the al- FRANCIS J. OLAMER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF CHARLES WOLTERS AND BOTH OF SAME PLACE.

JOSEPH G. HENDRI OKSON,

GALVANIC BOILER CLEANING COMPOUND.

Application filed January 31, 1888. Serial No. 262507.

(No specimens.)

To aZZ whom it may concern:

Be it known that I, FRANCIS J. OLAMER, a

delphia, in the county of Philadelphia and State of Pennsylvania, have invented certain to make and use the same, reference being had rus, as this metal assists in the prevention of scale by neutralizing or destroying the hydroters and figures of reference marked thereon, I gen gases,as will be explained in a third application for patent filed herewith, Serial No.

boiler-scale from steam boilers and generforming such connection, as it is apparent that agreat Variety of metals atford sufficient conscaletherein. ductivity to answer well in this situation.

In an application for patent filed by me on The composite metal which I use may be even date herewith, Serial N 0. 262,506, I have formed into any shape-as, forinstance, a plate or masswhich may be perforated, indented,

pended in the Water in or to be fed into a steam boiler or generator.

I have discovered that a combination of zinc and phosphorus produces effects of a more satpended, as named in my application above reisfactory character than those produced by the in the water in a steam boiler, generator, or feed-water heater formed of zinc and phosphorns. A piece of such composite metal placed in water in a boiler, generator, or feed-water heater will entirely destroy the scale-produckalies, and entirely prevent the formation of generator, or feed-water heater. scale in a boiler or generator, and at the same The accompanying drawings illustrate what I consider the best means for carrying my invention into practice.

Figure lshows a section of a boiler with the composition suspended and also placed upon the boiler-iron. Fig. 2 shows a feed-water heater applied to a boiler with a piece of the Fig. 3 is an enlarged face view of a plate of the composite metal formed to increase the exposed area.

Similar letters of reference indicate corresponding parts in all the figures.

A is the boiler, generator, or feed-water heater, and B the pieces of composite metal, (zinc and phosphorus.) This composite metal may be made in the form of a plate or mass, as shown at the left hand of Fig. 1 and in Fig. 3, and is preferably perforated, indented, or serrated to increase its exposed or effective area; or it may be in broken pieces suspended in a bag, net, or basket; or it may be deposited on the boiler-iron; \Vhen suspended, I prefer to use a conducting metallic connectionas, for instance, copper wim -which will, in the perforated plate form,be laced through the perforations b, and in the basket or net will preferably form the basket or net or other receptacle. The benefit of using copper wire has already been referred to. The wire is marked 0.

The plate or mass may be serrated, as shown in Fig. 3, or indented or otherwise formed to increase the extent of its exposed surface, as well as perforated. If desired, however, the mass or plate may be left plane.

The composite metal (zinc and phosphorus) suspended in the water of a boiler, generator, or heater creates a galvanic current, which cleanses it from scale-producing elements, separating the acids and alkalies and preventing the formation of scale, and also loosening and dissolving the already-deposited scale, the phosphorus being a deoxidizing metalloid.

I have found that for ordinary water, not impregnated to too great a degree with acids and alkalies, the zinc and phosphorus can be combined in about the following proportions, to wit: sixteen (16) parts of zinc and one part of phosphorus; but it will be understood that these proportions can be varied to any extent required by the character of the water.

Having thus described my invention, what I claim, and desire to secure by Letters Patent,

1. A composite metal for preventing the formation of scale in and removing scale from steam boilers and generators, consisting of zinc It will be understood that for suspension in i and phosphorus, substantially as set forth.

the basket or net and for simply throwing into the boiler, generator, or heater the form of the material is entirely unimportant.

The number of plates or parts B employed in a single boiler will of coursebe varied with the size of the boiler. In instances where one plate or part is sufficient the use of one only will be found more convenient than a greater number. Where more than one are required, the plates, baskets, 8m, will be placed about equidistant from each other by preference.

2. A plate or mass of zinc and phosphorus, perforated, indented, or serrated, for use in water in and to be fed into steam boilers and gcnerators,substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

FRANCIS J. CLAll/IER.

Witnesses:

J. G. HENDRICKSON, I. N. KALB. 

